-er -up a-a a-b a-t aaa aab aad aae aao aap aar aas aat aau ab- aba abb abd abe abo abp abr abs abt abu ad- ada adb add ade ado adp adr ads adt adu aea aeb aed aee aeo aep aer aes aet aeu aoa aob aod aoe aoo aop aor aos aot aou ap- apa apb apd ape apo app apr aps apt apu ar- ara arb ard are aro arp arr ars art aru as- asa asb asd ase aso asp asr ass ast asu at- ata atb atd ate ato atp atr ats att atu au- aua aub aud aue auo aup aur aus aut b-p b-u baa bab bad bae bao bap bar bas bat bau bba bbb bbd bbe bbo bbp bbr bbs bbt bbu bda bdb bdd bde bdo bdp bdr bds bdt bdu be- bea beb bed bee beo bep ber bes bet beu boa bob bod boe boo bop bor bos bot bou bpa bpb bpd bpe bpo bpp bpr bps bpt bpu bra brb brd bre bro brp brr brs brt bru bsa bsb bsd bse bso bsp bsr bss bst bsu bta btb btd bte bto btp btr bts btt btu bua bub bud bue buo bup bur bus but buu daa dab dad dae dao dap dar das dat dau dba dbb dbd dbe dbo dbp dbr dbs dbt dbu dda ddb ddd dde ddo ddp ddr dds ddt ddu de- dea deb ded dee deo dep der des det deu doa dob dod doe doo dop dor dos dot dou dpa dpb dpd dpe dpo dpp dpr dps dpt dpu dra drb drd dre dro drp drr drs drt dru dsa dsb dsd dse dso dsp dsr dss dst dsu dta dtb dtd dte dto dtp dtr dts dtt dtu dua dub dud due duo dup dur dus dut eaa eab ead eae eao eap ear eas eat eau eba ebb ebd ebe ebo ebp ebr ebs ebt ebu ed- eda edb edd ede edo edp edr eds edt edu eea eeb eed eee eeo eep eer ees eet eo- eoa eob eod eoe eoo eop eor eos eot eou ep- epa epb epd epe epo epp epr eps ept epu era erb erd ere ero erp err ers ert eru es- esa esb esd ese eso esp esr ess est esu eta etb etd ete eto etp etr ets ett etu eu- eua eub eud eue eup eur eus eut oaa oab oad oae oao oap oar oas oat oau ob- oba obb obd obe obo obp obr obs obt obu oda odb odd ode odo odp odr ods odt odu oea oeb oed oee oeo oep oer oes oet oo- ooa oob ood ooo oop oor oos oot op- opa opb opd ope opo opp opr ops opt or- ora orb ord ore oro orp orr ors ort oru os- osa osb osd ose oso osp osr oss ost osu ot- ota otb otd ote oto otp otr ots ott otu ou- oua oud oue ouo oup our ous out p-p paa pab pad pae pao pap par pas pat pau pba pbb pbd pbe pbo pbp pbr pbs pbt pbu pda pdb pdd pde pdo pdp pdr pds pdt pdu pea peb ped pee peo pep per pes pet peu poa pob pod poe poo pop por pos pot pou ppa ppb ppd ppe ppo ppp ppr pps ppt ppu pra prb prd pre pro prp prr prs prt pru ps- psa psb psd pse pso psp psr pss pst psu pt- pta ptb ptd pte pto ptp ptr pts ptt ptu pua pub pud pue pup pur pus put puu ra- raa rab rad rae rao rap rar ras rat rau rba rbb rbd rbe rbo rbp rbr rbs rbt rbu rda rdb rdd rde rdo rdp rdr rds rdt rdu re- rea reb red ree reo rep rer res ret reu roa rob rod roe roo rop ror ros rot rou rpa rpb rpd rpe rpo rpp rpr rps rpt rpu rra rrb rrd rrp rrr rrs rrt rru rsa rsb rsd rse rso rsp rsr rss rst rsu rta rtb rtd rte rto rtp rtr rts rtt rtu rua rub rud rue ruo rup rur rus rut ruu saa sab sad sae sao sap sar sas sat sau sba sbb sbd sbe sbo sbp sbr sbs sbt sbu sda sdb sdd sde sdo sdp sdr sds sdt sdu se- sea seb sed see seo sep ser ses set seu soa sob sod soe soo sop sor sos sot sou spa spb spd spe spo spp spr sps spt spu sr- sra srb srd sre sro srp srr srs srt ss- ssa ssb ssd sse sso ssp ssr sss sst ssu sta stb std ste sto stp str sts stt stu sua sub sud sue suo sup sur sus sut suu taa tab tad tae tao tap tar tas tat tau tba tbb tbd tbe tbo tbp tbr tbs tbt tbu tda tdb tdd tde tdo tdp tdr tds tdt tdu te- tea teb ted tee teo tep ter tes tet teu to- toa tob tod toe too top tor tos tot tou tpa tpb tpd tpe tpo tpp tpr tps tpt tpu tra trb trd tre tro trp trr trs trt tru tsa tsb tsd tse tso tsp tsr tss tst tsu tta ttb ttd tte tto ttp ttr tts ttt ttu tua tub tud tue tuo tup tur tus tut tuu ua- uaa uab uad uae uao uap uar uas uat uau uba ubb ube ubo ubp ubr ubs ubt ubu uda udb udd ude udo udp udr uds udt udu uea ueb ued uee uep uer ues uet uoa uob uod uoe uoo uop uor uos uot up- upa upb upd upe upo upp upr ups upt upu ur- ura urb urd ure uro urp urr urs urt uru usa usb usd use uso usp usr uss